Bitbox02 & passphrase
You can activate the optional passphrase in the app, the next time you start/plug in the Bitbox, a prompt for a passphrase will appear (after entering the PIN to unlock the device), which is colloquially known as the 25th word, but can consist of letters and special characters, hence passphrase.
Example:
For the first time you enter e.g. as a passphrase. @Satoshi and confirm with touch, then this passphrase is active forever and you are now in this passphrase wallet, can receive here etc., also create additional accounts...
Next time you start your Bitbox and enter e.g. as a passphrase (instead of @Satoshi) @satoshi (or something else) then this is again a new active passphrase and ends up here in a wallet that is still empty.
Your original passphrase (example @Satoshi) is active forever, i.e. the next time you enter the first confirmed passphrase again, you will be back in this wallet with your coins, accounts...
If you start the Bitbox with a passphrase entry but don't enter anything then you end up with an empty wallet without an additional passphrase.
Background:
If someone gets your seed (24 words) for whatever reason, they will have access to your wallet and credit.
But if, for example, you don't have anything on this wallet and only have the wallet in the passphrase, then they can't access your coins because they don't have your passphrase.
You can create as many passphrase wallets as you want, each with subaccounts...
You can also deactivate the passphrase at any time in the app then Bitbox starts without a prompt and you are in a “normal” wallet. If you activate it again in the app then the next time Bitbox starts again with a prompt, so passphrases and their wallets are not deleted .
Bitbox02 🇨🇭💯